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6 result(s) for Server Redundancy

• OPC-10000-1 – OPC Unified Architecture - Part 1: Overview and Concepts
  5.4 Redundancy
  high availability, fault tolerance and load balancing. OPC 10000-4 formally defines Client , Server and Network Redundancy . Whether and what Redundancy is supported by an OPC UA Application is defined ... Required Client and Server behaviours are associated with two distinct modes of Server Redundancy , transparent and non-transparent. The Client and Server responsibilities when using either transparent or non-transparent
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  6.6.1 Redundancy overview
  data structures and Services by which Redundancy may be achieved in a standardized manner. Server Redundancy allows Clients to have multiple sources from which to obtain the same data. Server ... networks or Clients . Redundant Servers could also coexist in systems with network and Client Redundancy . Server Redundancy is formally defined in 6.6.2 . Client Redundancy allows identically configured Clients to behave
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  6.6.2.1 General
  General There are two general modes of Server Redundancy , transparent and non-transparent. In transparent Redundancy the Failover of Server responsibilities from one Server to another is transparent ... aware of the RedundantServerSet and shall perform the required actions to benefit from the Server Redundancy . The ServerRedundancy Object defined in OPC 10000-5 indicates the mode supported
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  6.6.2.4.4 Server Failover modes
  Server Failover modes The Failover mode of a Server is provided in the ServerRedundancy Object defined in OPC 10000-5 . The different Failover modes for non-transparent Redundancy are described
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  6.6.2.4.5.1 General
  RedundantServerSet . The list is provided together with the Failover mode in the ServerRedundancy Object defined in OPC 10000-5 . To enable Clients to connect to all Servers in the list
• OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model
  6.3.1 ServerType
  Mandatory HasComponent Object ServerDiagnostics 1 - ServerDiagnosticsType Mandatory HasComponent Object VendorServerInfo - VendorServerInfoType Mandatory HasComponent Object ServerRedundancy 1 - ServerRedundancyType Mandatory HasComponent Object Namespaces - NamespacesType Optional HasComponent Method GetMonitoredItems Defined in 9.1 Optional ... there are no vendor-defined Objects beneath it. See 6.3.6 for its description. ServerRedundancy describes the redundancy capabilities provided by the Server . This Object is required even if the Server